Jon Daniels (born August 24, 1977) is the current President of Baseball Operations and General Manager of the Major League Baseball team Texas Rangers. The Rangers joined the Blue Jays (1992–93), the Yankees (1998–2001), and the Royals (2014-2015) as the only franchises to win back-to-back American League pennants in the last 22 years. When hired at age 28, he was the youngest GM in Major League Baseball at the time.[1]

His baseball career began in 2001, when he landed an internship with the Colorado Rockies. After the baseball season concluded that year, Daniels was informed of an opening in the Rangers organization. He applied and was hired by then GM John Hart as Assistant, Baseball Operations. He was promoted to Director, Baseball Operations in October 2003. In this role, Daniels negotiated multi-year contracts for Michael Young, Hank Blalock, and Francisco Cordero. In July 2004, Grady Fuson left the organization and Daniels was promoted to assistant GM.

Daniels' first major deal as general manager was trading Alfonso Soriano to the Washington Nationals for Brad Wilkerson, Terrmel Sledge, and Armando Galarraga, a move that perplexed many Rangers fans in the DFW area at the time. The move had many pros and cons. Soriano hit 46 homers and went on to steal 41 bases the next season and Wilkerson played most of the season injured and ended with a .222 batting average. On the other hand, trading Soriano opened up a spot for rookie Ian Kinsler and freed up money that would have been spent on Soriano's salary to be more flexible in offering Kevin Millwood a large contract.

A trade made in December of 2005, sent pitcher Chris Young, outfielder Sledge and first baseman Adrian Gonzalez to the San Diego Padres for pitchers Adam Eaton and Akinori Otsuka, and catcher Billy Killian. While Otsuka filled a valuable role as the Rangers closer, the oft-injured Eaton only pitched 65 innings with an ERA of 5.12. Dallas-native Chris Young pitched 180 innings for the Padres, racking up 164 K's and posting an ERA of 3.46. Adrian Gonzalez (considered a prized prospect) batted .304 for the Padres while hitting 24 home runs. This is generally considered the worst move of Daniels' career.

Some of Daniels' other moves have been better received. On the eve of the 2006 season, after losing #2 starter Eaton to injury, Daniels made a three-way deal, sending Juan Dominguez to the Oakland Athletics for John Rheinecker and Freddie Bynum, the latter of which he turned and traded to the Chicago Cubs for John Koronka. Koronka and Rheinecker helped shore up the Rangers rotation in April and May, while Dominguez stayed at Oakland's AAA affiliate for the entire year.

Another trade Daniels made was sending Laynce Nix, Kevin Mench, and Francisco Cordero to the Milwaukee Brewers for minor leaguer Nelson Cruz, and All-star left fielder Carlos Lee. The trade was completed just before the trade deadline of the 2006 season. Lee was the most sought after trade target during the season and provided the Rangers with a strong bat in the middle of the lineup. Lee then signed a $100 million free agent contract with the Houston Astros, giving the Rangers the #17 and #35 draft picks in 2007 (Blake Beavan and Julio Borbon, respectively) as compensation. Cruz emerged as a power-hitting All-Star in the 2009 season for the Rangers, and became a mainstay in the lineup during the World Series years.

In late December 2006, Daniels collaborated with White Sox general manager Kenny Williams, engineering a trade that caught many within baseball's inner circles off guard. The Rangers acquired young starter Brandon McCarthy in exchange for the even younger John Danks.

The Rangers committed fully to a rebuilding program during 2007, one that would directly lead to the team's unparalleled playoff success several years later.

On July 31, 2007, Daniels made two career-defining trades, one with the Atlanta Braves, the other with Boston Red Sox. Daniels first agreed with Atlanta Braves General Manager John Schuerholz to trade coveted slugger Mark Teixeira and relief pitcher Ron Mahay for catching prospect Jarrod Saltalamacchia. The Rangers were also able to obtain four minor leaguers in the trade. The first of these prospects, left-hander Matt Harrison, emerged as a starter in the 2009 Ranger rotation. The second of these prospects acquired from the Braves, Elvis Andrus, now widely hailed as an elite young shortstop. Another, Neftalí Feliz, is a well regarded power pitcher who joined the Rangers bullpen in 2009. Both Andrus and Feliz were named as All-Stars in 2010, a season in which Feliz was voted rookie of the year.

But there was another substantive trade that day, which occurred just before the trade deadline, Daniels agreed to send closer Éric Gagné to the Boston Red Sox for young starting pitcher Kason Gabbard, Triple-A prospect David Murphy, and rookie-league outfielder Engel Beltre.

Not receiving as much attention at the time, Daniels also made a third trade prior to the deadline sending center fielder Kenny Lofton to the Indians for catching prospect Max Ramírez.

As a result of the 2007 draft, trades and Latin America free agent signings, the Rangers jumped to the #4 system in Baseball America 2008 organization rankings. This represented the biggest jump since Baseball America began ranking MLB farm systems.

Before the 2008 Season, Daniels traded the 2nd member of what was once dubbed the "DVD trio", sending Edinson Vólquez to the Reds for outfielder Josh Hamilton. This trade has received positive reviews for both sides, as each player made an All-star appearance with their new team and both teams made the playoffs in the 2010 season. Hamilton emerged as one of the biggest stars in the game, winning the 2010 AL MVP, and establishing himself as an elite offensive performer.

Baseball America recognized the Rangers as having the best farm system following the 2008 season. Notable additions to the system in 2008 included draft picks Justin Smoak, Robbie Ross, and Joe Wieland.

At the 2009 Winter Meetings, many media analysts expected the Rangers to be wallflowers, as the team was up for sale, leaving Daniels with minimal budget. In order to free up salary, Daniels orchestrated a deal with the Baltimore Orioles, dealing veteran starting pitcher Kevin Millwood for young reliever Chris Ray and left-handed pitcher Ben Snyder. With the salary freed up by the departure of Millwood, the Rangers signed free agent Rich Harden. The initial fan and media reaction to the deal were mostly positive, even though both Ray and Harden were recovering from arm injuries. Daniels also signed free agents Vladimir Guerrero and Colby Lewis.

Nolan Ryan resigned as CEO of the Rangers and sold his stake in the team in October 2013. Since then, Daniels has been the operating head of the franchise. Co-chairmen and principal owners Ray Davis and Bob Simpson have largely left the Rangers' day-to-day operations in Daniels' hands.

On November 20, 2013, Daniels kicked off a sub-par Rangers offseason by trading Ian Kinsler to the Detroit Tigers for Prince Fielder and cash. The move occurred before the winter meetings with many considering the Rangers to be active as they continue to pursue their first World Series championship.

Ryan stated that he probably should have asked former Rangers owner Tom Hicks to help facilitate his relationship with Jon Daniels, when Ryan joined the organization in 2008 as club president, due to political differences (Daniels being a liberal Democrat and Ryan being a staunch Republican) as well as philosophical differences (Daniels believing entirely in sabermetrics and Ryan being a proponent of traditional scouting).[10] Daniels agreed to a three-year extension with the Rangers on November 14, 2014.[11] The 2014 season was disastrous the Rangers hit with many injuries to top players finished last in the entire American League 67-95 (and 3rd worst in all of MLB).

After a disastrous 2014 season in which the Rangers finished last in the entire American League (and 3rd worst in all of MLB), and despite starting the season with an 8-16 record and being under .500 as late as August 3, the Rangers would clinch the American League West title on the final day of the season, the team's 6th division title and 7th postseason appearance in franchise history.

The Rangers would start the season as poorly as their 2014 season ended, reaching a season low eight games under .500 (8-16) on May 3. The lone bright spot was the resurgence of Prince Fielder from season-ending surgery the prior year.

At the All-Star break the Rangers improved slightly, but were still under .500 (42-46).

The second half of the season would see the team begin a resurgence, led in part by the acquisition of Cole Hamels from Philadelphia, the emergence of Shawn Tolleson as the team's closer after the team released Neftalí Feliz, the returns of Martin Perez and Derek Holland from the disabled list, and vastly improved play by Shin-Soo Choo and Adrián Beltré. However, as late as August 3 the Rangers were still below .500.

The improved play continued, and on September 15 (during a four-game home series against their in-state and division rivals the Houston Astros) the Rangers would defeat the Astros 6-5, taking the division lead in the process and ultimately sweeping the series with the Astros. The Rangers would not relinquish the division lead from that point forward, though they would not clinch the division until the last day of the season when they defeated the Los Angeles Angels 9-2. The Rangers lost to the Toronto Blue Jays in five games in the Division Series.

The Rangers won the AL West championship for the second straight season and will face the Toronto Blue Jays in the Division Series. For the first time in franchise history, the Rangers finished with the American League's best record; thus giving it (potentially) home field advantage throughout the entire American League playoffs (and, with the American League's win in the 2016 All-Star Game, possible home field advantage throughout the entire World Series as well).

2016 was marked by the trade deadline moves of Jon Daniels. Daniels focused on improving the club at the trade deadline even though they were in first place. On August 1, 2016, Daniels acquired Carlos Beltrán from the Yankees in exchange for prospects Dillon Tate, Erik Swanson, and Nick Green. The other deadline deal On August 1, 2016 Daniels acquired Jonathan Lucroy and Jeremy Jeffress from the Brewers in exchange for Lewis Brinson, Luis Ortiz, and a player to be named later. After the trade deadline Daniels continued to acquire new players as he added Carlos Gómez on August 20, 2016 who had been recently released by the Houston Astros.